公开(公告)号：US10950182B2

公开(公告)日：2021-03-16

申请号：US16567972

申请日：2019-09-11

Applicant: Apple Inc.

Inventor： Junhua Tan ,  Kingsuk Brahma ,  Jie Won Ryu ,  Shengkui Gao ,  Shiping Shen ,  Majid Gharghi ,  Hyunwoo Nho ,  Injae Hwang ,  Kavinaath Murugan ,  Sun-Il Chang ,  Chin-Wei Lin ,  Hyunsoo Kim ,  Rui Zhang ,  Jesse Aaron Richmond ,  Yun Wang ,  Hung Sheng Lin ,  Alex H. Pai ,  Chaohao Wang ,  Wei H. Yao

IPC: G09G3/3283 ,  G09G3/3241 ,  G09G3/3258 ,  G09G3/3291

Abstract: The present disclosure relates generally to systems and methods that may reduce a reduction in visual artifacts related to hysteresis of a light emitting diode (LED) electronic display. In one example, an electronic device may include a controller. The controller is may provide a signal to a pixel of a display of the electronic device while at least a portion of the display is turned off. The signal may include a first current and a second current. The first current may be designed to increase an ambient temperature corresponding to the pixel. The second current may be generated as part of an active panel conditioning operation. By applying the first current and the second current, hysteresis settling times from the pixel may improve, therefore improving speeds of sensing and compensation operations of the electronic device.

公开(公告)号：US10762836B1

公开(公告)日：2020-09-01

申请号：US15275023

申请日：2016-09-23

Applicant: Apple Inc.

Inventor： Hopil Bae ,  Wei H. Yao ,  Mohammad B. Vahid Far ,  Yafei Bi ,  Xiaofeng Wang ,  Thomas Charisoulis ,  Hasan Akyol ,  Henry C. Jen ,  Derek K. Shaeffer

IPC: G09G3/3233

Abstract: An electronic display row drivers or column drivers that send reference currents or voltages to microdrivers to be used to drive micropixels to particular levels. The microdrivers, in turn, ship current to micropixels that display images based at least in part on the shipped current.

公开(公告)号：US10739882B2

公开(公告)日：2020-08-11

申请号：US14453574

申请日：2014-08-06

Applicant: Apple Inc.

Inventor： Wei Chen ,  Steven P. Hotelling ,  John Z. Zhong ,  William C. Athas ,  Wei H. Yao

IPC: G06F3/041 ,  G09G3/32 ,  H04N9/30 ,  G06F3/044

Abstract: An electronic device may include a display. The display may be formed by an array of light-emitting diodes mounted to the surface of a substrate. The substrate may be a silicon substrate. Circuitry may be located in spaces between the light-emitting diodes. Circuitry may also be located on the rear surface of the silicon substrate and may be coupled to the array of light-emitting diodes using through-silicon vias. The circuitry may include integrated circuits and other components that are attached to the substrate and may include transistors and other circuitry formed within the silicon substrate. Touch sensor electrodes, light sensors, and other components may be located in the spaces between the light-emitting diodes. The substrate may be formed from a transparent material that allows image light to reach a lens and image sensor mounted below the substrate.

公开(公告)号：US10360826B2

公开(公告)日：2019-07-23

申请号：US15273458

申请日：2016-09-22

Applicant: Apple Inc.

Inventor： Yafei Bi ,  Xiaofeng Wang ,  Haifeng Li ,  Mohammad B. Vahid Far ,  Hopil Bae ,  Hung Shen Lin ,  Hyunwoo Nho ,  Wei H. Yao

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/00

Abstract: An electronic device includes one or more unit pixels with a first node, a second node, and a third node. The device includes light-emitting-diode (LED) voltage (Vled) sensing circuitry, that senses Vled of the one or more unit pixels, by: sampling a charge of a capacitor of the one or more unit pixels, transitioning from the sampling, and reading out the Vled based upon a change in the charge of the capacitor, such that an operation of the unit pixel may be modified based upon the Vled.

公开(公告)号：US20190088204A1

公开(公告)日：2019-03-21

申请号：US16132322

申请日：2018-09-14

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chih-Wei Yeh ,  Yunhui Hou ,  Chaohao Wang ,  Wei H. Yao ,  Paolo Sacchetto ,  Derek K. Shaeffer ,  Henry C. Jen ,  Shingo Hatanaka ,  Hasan Akyol ,  Mahdi Farrokh Baroughi ,  Hopil Bae

IPC: G09G3/3258

Abstract: A mobile electronic device includes a display having an active array and a reference array. The active array includes a pixel and the reference array includes a reference pixel. The mobile electronic device also includes processing circuitry communicatively coupled to the display. The processing circuitry is configured to instruct the active array to drive the pixel based at least in part on a current-voltage relationship of the pixel and a reference current-voltage relationship of the reference pixel.

公开(公告)号：US10008172B2

公开(公告)日：2018-06-26

申请号：US14276146

申请日：2014-05-13

Applicant: APPLE INC.

Inventor： Yingxuan Li ,  Weijun Yao ,  Wei H. Yao ,  Kingsuk Brahma ,  Hyunwoo Nho

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/029

Abstract: Devices and methods for reducing or eliminating image artifacts are provided. By way of example, a display panel includes a pixels including pixel electrodes configured to receive an image data signal, and common electrodes (VCOMs) configured to receive a common voltage signal. The display panel includes a source driver, which includes a first digital to analog converter (DAC) configured to generate a gamma voltage signal to provide a first adjustment to the image data signal, and a second DAC configured to generate an error correction voltage signal to provide a second adjustment to the image data signal. The second adjustment is configured to adjust the image data signal to compensate for an operational characteristic difference between row pixels and column pixels of the display panel. The source driver includes an output buffer to supply the image data signal to the pixel electrodes.

公开(公告)号：US20160041663A1

公开(公告)日：2016-02-11

申请号：US14453574

申请日：2014-08-06

Applicant: Apple Inc.

Inventor： Wei Chen ,  Steven P. Hotelling ,  John Z. Zhong ,  William C. Athas ,  Wei H. Yao

IPC: G06F3/041 ,  G06F3/044 ,  H04N9/30 ,  G09G3/32 ,  G09G3/20

Abstract: An electronic device may include a display. The display may be formed by an array of light-emitting diodes mounted to the surface of a substrate. The substrate may be a silicon substrate. Circuitry may be located in spaces between the light-emitting diodes. Circuitry may also be located on the rear surface of the silicon substrate and may be coupled to the array of light-emitting diodes using through-silicon vias. The circuitry may include integrated circuits and other components that are attached to the substrate and may include transistors and other circuitry formed within the silicon substrate. Touch sensor electrodes, light sensors, and other components may be located in the spaces between the light-emitting diodes. The substrate may be formed from a transparent material that allows image light to reach a lens and image sensor mounted below the substrate.

Abstract translation: 电子设备可以包括显示器。 显示器可以由安装在基板的表面上的发光二极管的阵列形成。 衬底可以是硅衬底。 电路可以位于发光二极管之间的空间中。 电路也可以位于硅衬底的后表面上，并且可以使用贯穿硅通孔耦合到发光二极管阵列。 电路可以包括集成电路和附接到衬底的其它部件，并且可以包括在硅衬底内形成的晶体管和其它电路。 触摸传感器电极，光传感器和其他部件可以位于发光二极管之间的空间中。 基板可以由允许图像光到达安装在基板下方的透镜和图像传感器的透明材料形成。

公开(公告)号：US09110527B2

公开(公告)日：2015-08-18

申请号：US13738712

申请日：2013-01-10

Applicant: APPLE INC.

Inventor： Yafei Bi ,  Thomas J. Wilson ,  Wei H. Yao ,  Hopil Bae

IPC: G06F3/041 ,  G09G5/00 ,  G09G3/36 ,  G09G5/18

CPC classification number: G06F3/041 ,  G09G3/3611 ,  G09G5/003 ,  G09G5/18 ,  G09G2320/0693 ,  Y10T29/49002

Abstract: A system, method, and device for increasing uniformity between displays incorporating components from different manufacturers. Incorporating components from different manufactures in different displays may cause the different displays to appear differently even under similar conditions. By modifying the operating parameters used to drive the display according to performance characteristics for various conditions, displays incorporating components from different manufacturers may be configured to produce a substantially similar picture under similar conditions. The various conditions may include stimulus information, such as temperature or touch activity.

Abstract translation: 一种用于增加不同制造商的组件的显示器之间的均匀性的系统，方法和装置。 将不同制造商的组件并入不同的显示器可能会导致不同的显示器在不同的条件下显示不同。 通过根据各种条件的性能特性修改用于驱动显示器的操作参数，结合来自不同制造商的部件的显示器可被配置为在类似的条件下产生基本相似的图像。 各种条件可以包括刺激信息，例如温度或触摸活动。

公开(公告)号：US08803593B2

公开(公告)日：2014-08-12

申请号：US13632078

申请日：2012-09-30

Applicant: Apple Inc.

Inventor： Ahmad Al-Dahle ,  Yafei Bi ,  Mir B. Ghaderi ,  Wei H. Yao

IPC: G05F1/10

CPC classification number: G05F1/613

Abstract: One embodiment of an apparatus to control and sense a voltage through a single node can include a comparator to monitor single node voltage, a transistor to discharge voltage through the single node and control logic. The control logic can have at least two operational phases when actively controlling the voltage through the single node. In a first phase, the control logic can configure the comparator to determine if the single node voltage is greater than a reference voltage. In a second phase, the control logic can configure the transistor to discharge voltage through the single node when the comparator has previously indicated that the single node voltage is greater than a reference voltage. The control logic can alternatively execute first and second phases to discharge the voltage to a predetermined level.

Abstract translation: 用于控制和感测通过单个节点的电压的装置的一个实施例可包括监视单节点电压的比较器，通过单个节点放电电压的晶体管和控制逻辑。 当通过单个节点主动控制电压时，控制逻辑可以具有至少两个操作阶段。 在第一阶段中，控制逻辑可以配置比较器以确定单个节点电压是否大于参考电压。 在第二阶段中，当比较器先前已经指示单个节点电压大于参考电压时，控制逻辑可以配置晶体管以通过单个节点放电电压。 控制逻辑可替代地执行第一和第二阶段以将电压放电至预定水平。

公开(公告)号：US20140132158A1

公开(公告)日：2014-05-15

申请号：US13746549

申请日：2013-01-22

Applicant: APPLE INC.

Inventor： Brian R. Land ,  Prashanth S. S. Holenarsipur ,  Terry Gilton ,  Paul S. Drzaic ,  Wei H. Yao

IPC: H05B37/02

CPC classification number: H05B37/02 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2310/0237 ,  G09G2320/0626 ,  G09G2320/0633 ,  G09G2360/141 ,  G09G2360/144

Abstract: An electronic device may be provided that has a display. The display may produce light using a backlight unit or using an array of light-emitting display pixels. An ambient light sensor may be mounted under an active area of the display to measure ambient light that is transmitted through the display. The display may be periodically disabled to prevent the display from producing light that interferes with the ambient light sensor. Display pixels may be coupled to a common cathode switch that can be periodically opened or the backlight in a display with a backlight can be periodically turned off. Control circuitry for periodically disabling the display while enabling the ambient light sensor may be implemented using a display driver integrated circuit mounted to a display.

Abstract translation: 可以提供具有显示器的电子设备。 显示器可以使用背光单元或使用发光显示像素阵列产生光。 环境光传感器可以安装在显示器的有效区域下方，以测量通过显示器传输的环境光。 可以周期地禁用显示器以防止显示器产生干扰环境光传感器的光。 显示像素可以耦合到可以周期性地打开的公共阴极开关，或者可以周期性地关闭具有背光的显示器中的背光。 可以使用安装到显示器的显示驱动器集成电路来实现在启用环境光传感器的同时周期性禁用显示器的控制电路。